| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 972.82 | USD | 20251025 |
| Shandong Xima | China national standards | MT | 874.13 | USD | 20251025 |
| Shandong Qiangsen Chem | China national standards | MT | 888.22 | USD | 20251025 |
| Shandong Qiangsen Chem | China national standards | MT | 888.22 | USD | 20251025 |
| Qingdao Shengze Chem | China national standards | MT | 972.82 | USD | 20251025 |
| Qingdao Shengze Chem | China national standards | MT | 972.82 | USD | 20251025 |
| Shandong Daoqin Chem | China national standards | MT | 986.92 | USD | 20251025 |
| Zibo Zhongsheng Chem | China national standards | MT | 1409.88 | USD | 20251024 |
| Shandong Fusheng | China national standards | MT | 1099.71 | USD | 20251024 |
| Shandong Fusheng | China national standards | MT | 888.22 | USD | 20251024 |